Startup Idea : Shared Data Tables

Idea: YouTube - shared video Facebook - shared personal profile Google Docs - shared documents DropBox - shared files What about shared DataTable? Today: -if I want give to somebody data I need: -export it to xml and put to ftp -give access to my database server -develop web service -... I whant: -login to web site -simple create base -simple create table -have tools for add and edit data (by hand, by integration services) -give access to data for all or for somebody -get access to data other users -get access from many user use sql Employment -exchange of data between companies -publication of statistics -shared public data -get data from partners -... What do you think about this idea for a startup?